EP1424314A1 - Beschichtete Gläser und Verfahren zu deren Herstellung - Google Patents
Beschichtete Gläser und Verfahren zu deren Herstellung Download PDFInfo
- Publication number
- EP1424314A1 EP1424314A1 EP20030027211 EP03027211A EP1424314A1 EP 1424314 A1 EP1424314 A1 EP 1424314A1 EP 20030027211 EP20030027211 EP 20030027211 EP 03027211 A EP03027211 A EP 03027211A EP 1424314 A1 EP1424314 A1 EP 1424314A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- glass
- coating
- coated surface
- glass body
- polyacrylate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10165—Functional features of the laminated safety glass or glazing
- B32B17/10247—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
- C03C17/32—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
- C03C17/324—Polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10165—Functional features of the laminated safety glass or glazing
- B32B17/10311—Intumescent layers for fire protection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
- C03C17/32—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3405—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of organic materials
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/0075—Cleaning of glass
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/44—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the composition of the continuous phase
- C03C2217/445—Organic continuous phases
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/46—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
- C03C2217/47—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase consisting of a specific material
- C03C2217/475—Inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/46—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
- C03C2217/48—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase having a specific function
- C03C2217/485—Pigments
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/259—Silicic material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31623—Next to polyamide or polyimide
Definitions
- the invention relates to coated glasses and a method for their Production.
- Coating of glass in the form of stained glass has been known for a long time. So were Glass panels from church buildings for as early as the 10th century Representation of Christian motifs with colored coatings. The ancient ones Stained glass paints were mostly of mineral origin and were on the panes applied with a brush and then baked.
- the branding is a heat treatment that leads to the melting of the glass surfaces to a permanent connection of the previously applied mineral color pigments with of the glass surface. The color is burned in e.g. at 550 ° to 700 ° C.
- glasses for decorative or labeling purposes to coat.
- glasses are also known partially with a privacy screen or with Glass surfaces with safety markings.
- single-pane safety glasses ESG
- ESG single-pane safety glasses
- Ceramic colors still have the disadvantage that they are used outdoors oxidize easily, do not have sufficient UV resistance and through Weather effects lose color brilliance.
- Another disadvantage of ceramic baked colors is that about 15 to 20% of the glasses coated in this way Manufacturing break, for example in the so-called "heat soak test”. moreover the coating must be done before installing the glasses and cannot later more changed or removed.
- the object of the present invention is coated glasses and a method to provide for their production that the disadvantages described above are not having.
- the coating is said not to require the baking step Be feasible at room temperature, be permanent and weatherproof and be removable without residue. Furthermore, the process of coating the mechanical, chemical and physical properties of the glass not or change only negligibly.
- coated glasses and a method for their manufacture according to the independent claims.
- preferred Embodiments are the subject of the subclaims or are described below.
- All process steps necessary to apply the coating such as Clean, polish, apply primer and coating and dry preferably at room temperature, but in any case at temperatures below 100 ° C, preferably below 50 ° C.
- Steps d to g and d to h are repeated if differently colored Polyacrylate varnishes can be applied one after the other or zones of different Layer thickness of the same polyacrylate lacquer should arise. This is usually the case the partial coverage in step d step by step for specific areas away.
- Polyacrylate lacquers in the sense of the invention are isocyanate-hardened acrylate binders. Strictly speaking, the cured polyacrylates are therefore around polyurethanes. However, since they are based on resins made from acrylic monomers, i.e. Acrylic resins / acrylate they are referred to here as polyacrylate lacquers. Paint is the composition of at least binder and hardener or their hardened Coating, resin, the uncured binder.
- Polyacrylate binders including acrylic resins, polyacrylates, acrylate resins or polyacrylate resins are called by polymerization, mostly radical solution polymerization, the acrylic monomers i.e. (Meth) acrylic acid and its derivatives (especially esters) manufactured. In particular, hydroxyl- and / or carboxy-functionalized derivatives are also used the (meth) acrylic acid used to produce the polymer.
- the isocyanate hardener is a polyfunctional isocyanate, at least have two isocyanate groups, such as MDI, TDI (tolylene diisocyanate), HDI (Hexamethylene diisocyanate) and / or HDI biuret (aliphatic polyisocyanate). Suitable are also isocyanate-modified prepolymers. These are preferably all in one organic solvent added.
- the polyacrylate lacquer additionally contains Dyes for the production of colored coatings.
- the coating according to the invention is a cold coating, which at 5 ° C to 35 ° C, especially at room temperature, and not below must be baked or cured at an elevated temperature.
- the curing is chemical.
- the glasses coated according to the invention act like etched glasses, since the Coating in the applied state shimmers in the light and the light in little Scope breaks. Sandblasted panes have a matt effect.
- the Glasses coated according to the invention are largely resistant to signs of wear insensitive, in particular be different from sandblasted or etched Do not leave fingernail scratches or fingerprints on glasses when in use.
- the glass surfaces coated according to the invention are also easy to clean and disinfect.
- the cured coating preferably has a layer thickness of 10 to 50 microns on, in particular 15 to 30 microns.
- the use of the primer is essential important.
- the primer / cleaner preferably comprises or consists of a polar organic solvent, for example one or more hydrocarbon compounds having 2 to 12 carbon atoms, preferably 2 to 4, with at least one of the following groups: alcohol, keto, aldehyde, ester - or acid group (s). Preferably C2 to C3 alcohols, especially a mixture of ethanol and butanone (CAS 78-93-3).
- the primer / cleaner is preferably essentially free of water ( ⁇ 5% by weight, preferably ⁇ 1% by weight).
- the primer and / or cleaner (primer / cleaner) is preferably applied at 20 to 80 g / m 2 , in particular at 40 to 60 g / m 2 .
- the primer or the primer / cleaner according to step c differs from the cleaner according to step a at least in that the cleaner according to step a is preferred contains substantial amounts of water.
- the glass surface can first be pre-cleaned with a commercially available cleaner in order to remove simple soiling, such as dust or water splashes, preferably with a water-containing cleaner, preferably containing more than 50% by weight of water.
- a water-containing cleaner preferably containing more than 50% by weight of water.
- the glass surfaces are then polished in order to at least partially remove any chemical contaminants such as SO 2 vapor deposition or silicate coatings, which arise in particular during the production of the special glasses.
- the polishing can be done, for example, with a grinder and stainless steel wool, however, the glass surface is not damaged, only contaminants adhering firmly to the glass surface are removed.
- the silicate coating can be used when cutting glasses with a water jet arise.
- Fire protection glazing consist of several panes, the layers have chemically bound water glass.
- silicate anions When cutting with a water jet silicate, in the form of silicate anions, is rinsed onto the glass surface.
- Other impurities that can arise during glass production are, for example vaporization with sulfur dioxide. Such impurities surprisingly proved to be annoying because they are the permanent attachment of the Adversely affect coating, especially when exposed to moisture.
- the glass surface can be cleaned after the primer / cleaner treatment, for example with a soft cloth to remove residues from the cleaner and distribute and to dry the cleaner and / or the primer.
- the actual coating is a 2-component paint from at least one Polyacrylate binder containing mineral particles and at least one polyisocyanate hardener.
- the solvent content of the two-component lacquer is preferably before application of 20 to 80 wt.%, preferably 30 to 70 wt.%.
- the Application of the polyacrylate varnish containing the hardener and the mineral particles is preferably done by means of screen printing, spraying (for example airbrush) or rollers, especially preferably by means of screen printing or spraying.
- the polyacrylate lacquer can be sprayed on, rolled, painted or by airbrush or Screen printing can be applied to the glass pane.
- the coating is preferred sprayed on with a low pressure spray gun or screen printed applied. Coating with a spray gun takes place in particular already built-in glass panels.
- a paint mist extraction system can be used. This is particularly the case with the coating of special glasses in the installed state in already used ones Make sense. With the method according to the invention it is thus possible to Coating glass panes on site when installed.
- the masking tape may also be applied earlier and removed the masking film.
- the coating surface is already dried after 20 minutes and moisture resistant. After about 6 to 8 hours all solvents have escaped from the polyacrylate varnish. After about 48 hours can be cleaned with a commercially available glass cleaner become.
- the coating can be physically loaded after three days. The final hardening is achieved after approx. 10 days.
- the coating preferably contains no white pigments and no plasticizers, which ignite in the event of fire and cause a new source of fire could.
- the color pigments used are preferably commercially available organic pigments, used, preferably in the form of color pastes. Can also be suitable, if necessary additionally be added to the color pigments, fluorescent detection substances. Especially in the case of coating fire protection glazing, it has proven to be turn out to be useful in the dark, phosphorescent dyes use, e.g. along the escape route if the lighting fails Fire.
- the mineral particles preferably have an average particle size of 5 to 25 microns and are preferably inorganic oxides of aluminum, silicon or their mixed oxides, in particular aluminum oxide or metal oxide, such as Titanium dioxide, tin oxide and / or iron oxide, coated mica particles. Suitable are about Iriodine® products from Merck. These are preferred in paint Formed a slurry / dispersion in an organic medium.
- Residual deposits on the glass are removed by polishing or grinding, preferably by polishing with steel wool, especially stainless steel wool.
- a masking film that divides the desired pattern is applied dry, so as not to destroy the primer film that may be present.
- the edges of the glass sheet, and surfaces that are not to be coated are masked off.
- the desired pattern is transferred to the film beforehand.
- the masking film remaining on the pane represents a negative of the later ones Coating. Provided only a uniform coating of the entire element is also possible without masking film.
- the foil can also only be removed in the course of several work steps - i.e. each only certain punched or pre-cut parts - by different areas To produce coatings on the glass surface.
- the special glasses coated according to the invention can also be residue-free again be freed from the coating.
- the disc with a special Coating remover for example a paint remover containing dichloromethane, treated. Because the glass surface is not damaged during coating there are no grooves or notches, such as those found in the Sandblasting is created.
- Glass is made by melting basic and acidic oxides together.
- Window glass is made from quartz sand (SiO 2 ), soda (Na 2 CO 3 ) and lime (CaCO 3 ). When heated, CO 2 is split off and the basic oxides CaO and Na 2 O formed react with the acidic oxide SiO 2 to form a sodium calcium silicate.
- oxides used Glass with different properties are obtained.
- Such glass is typically constructed as follows: silica SiO 2 69% - 74% sodium Na 2 O 12% - 16% calcium oxide CaO 5% - 12% magnesia MgO 0% - 6% alumina Al 2 O 3 0% - 3%
- Borosilicate glass contains approximately 7 percent to 15 percent boron oxide.
- the following additives are used in small quantities for colored glasses: ferrous oxide FeO lime Cromtrioxid Cr 2 O 3 dark green cobalt monoxide CoO blue Neodymtrioxid Nd 2 O 3 violet
- the glass melt flows over a liquid metal bath (e.g. a tin bath), the float bath.
- a liquid metal bath e.g. a tin bath
- high-quality plane-parallel Glass can be manufactured inexpensively. Due to the brittle surface texture float glass has a low bending tensile strength and shatters when Breaking into large, sharp-edged pieces.
- the softening temperature is approx. 600 ° C. In the technical guidelines or standards this glass is also called Called mirror glass (SPG). But there are also plastic glasses such as acrylic glasses suitable.
- So-called chemical prestressing is an alternative to thermal prestressing or chemical hardening for thinner panes (pane thickness 2 mm to 3 mm) applied.
- the disc can also be preloaded Reach immersion in hot potassium nitrate. There is an ion exchange at the Surface of the glass. The sodium ions of the glass are the larger Potassium ions of the melt replaced. This creates pressure on the surface of the Glass. The glass edges are also tempered. The strength increases yourself. However, the preload is limited to a relatively thin one Edge area and is only used for 2 - 3 mm pane thickness.
- Single-pane safety glass is usually used in glass facade construction and used indoors in glass partition systems and glass door systems.
- Compensating for loss of surface tension is imperatively thicker than glass mandatory for uncoated glasses. This also creates higher costs for the frame construction and there are structural restrictions with regard to of use.
- the coated single-pane safety glasses according to the invention have none or only very slight impairment of the surface tension Glasses on and can therefore also be installed in lower layer thicknesses.
- the coated special glasses according to the invention can continue on both Sides of the glass pane are coated while the traditional baking coatings in the case of toughened safety glass, may only be applied to one side or one need elaborate relaxation of the glass.
- Fire protection glazing are components with one or more translucent elements, which consist of a frame, certain fire protection glasses, brackets, seals and fastening material and which are classified as 30, 60, 90 or 120 minutes resistant to fire. They are divided into two fire resistance classes according to DIN 4102, part 13: Fire rating Fire resistance F-glazing G-glazing within minutes F 30 G 30 ⁇ 30 F 60 G 60 ⁇ 60 F 90 G 90 ⁇ 90 F 120 G 120 ⁇ 120
- Such special glasses are mainly used for visible glass surfaces Fire protection doors, fire gates, and interior glazing of escape routes.
- F glazing is fire protection glazing that corresponds to its fire resistance duration the spread of fire and smoke as well as the passage of high temperature Prevent heat radiation.
- F glazings are exposed to fire opaque and form a heat shield. They behave in terms of fire protection like walls.
- the temperatures on the fire-turned Side of the test specimen on average by no more than 140 K and on none Measuring point by more than 180 K above the initial temperature of the test specimen Increase the start of the experiment (see DIN 4102, Part 13, Tab. 3).
- F glazings are Barriers to heat radiation.
- F glasses are basically one Laminated glazing. The fire protection effect is based on exposure to heat, evaporating chemical compounds that are placed between the panes (e.g. water glass).
- the individual panes are made of laminated safety glass or toughened safety glass. The steam evaporates Discs in the space between the panes and prevent them for a certain period of time the heat radiation from the source of the fire through the window.
- Type F fire protection glass can e.g. from several layers of glass, e.g. Float glass, consist of layers of foaming in the event of a fire Alkali silicate are filled.
- the alkali silicate layers have a thickness of approx. 1.5 mm and are edge sealed.
- the alkali silicate contains water.
- the fire protection glass additionally one or more laminated safety glass panes comprises two glass panes which are made of polyvinyl acetate (PVA) or polyvinyl butyral (PVB) film.
- PVA polyvinyl acetate
- PVB polyvinyl butyral
- Fire protection glazing of fire resistance class G are also fire protection glazing, which, according to their fire resistance duration, the spread of Prevent fire and smoke. They remain transparent and cautious in the event of a fire fire protection glass. After that, G glazing must also be used as Room closure remain effective. No on the fire-away side Flames occur. Heat radiation is only impeded and not, as with F glazing prevented.
- G glazings are special fire protection components. They are only allowed in places installed where there are no concerns for fire safety reasons exist, e.g. as light openings in corridor walls that serve as escape routes.
- the Bottom edge of the glass usually at least 1.80 m above the floor be arranged so that a wall provides radiation shade in the event of fire.
- G glasses are mostly single-pane glazing, which, in contrast to F-glazing, allows heat radiation to pass through not prevented and during the specified fire resistance period must not melt or burst. Often it is glass, which is very high Temperatures (approx. 1200 ° C) made of boron-alumina mixtures, on it is based above all on the great heat resistance of these glasses.
- borosilicate glasses are also known as JENAER GLAS.
- Glasses which are particularly suitable for the coating used according to the invention are toughened glasses Single-pane safety glass (ESG), including multi-layer laminated glass containing ESG and fire protection glass of the type G glazing, in particular borosilicate glass. It has surprisingly been found that the coating used according to the invention the tempering of ESG is not or only slightly reduced.
- ESG Single-pane safety glass
- Typical examples are fire protection glasses such as Pyrodur® and Pyrostop® from the company Pilkington, Pyroswiss® and Contraflam® from Saint Gobain and Pyran® from Schott company.
- Fire protection glasses must be approved individually for each element. By processing or changing the individual elements expires the approval, because here the behavior in the event of a fire can have a lasting impact.
- foils that are glued to the pane can be flammable be and thereby affect the service life of the disc.
- Fire protection glasses cannot be coated with stoving inks using the screen printing process because the panes cannot be heated, and therefore a Burning in the color is not possible. So far the only option for fire protection glasses to coat without changing the surface tension and Without losing the approval of the fire protection elements, there is one Disc with ceramic-fired screen printing inks in front of the fire protection glass to put. There are only special types of fire protection elements for this suitable, which are themselves checked for approval. Such a pane structure is thick and requires a more elaborate and stronger frame construction. That too Etching or sandblasting of fire protection glass is not permitted. An afterthought Coating of these glasses, especially G-glazing, is therefore not yet possible.
- the fire protection glazing coated according to the invention surprisingly shows no impairment in their fire protection behavior.
- the coating as such is non-flammable and becomes longer by melting with the glass surface and higher temperatures are bright again.
- the coatings according to the invention are used in areas in which disinfection / sterilization of glass panes is necessary, for example in hospitals, it is advantageous for the coatings according to the invention with a base paint (without mineral particles) and hardener to provide another layer, for example in a ratio of 80 to 50 to 20 to 50% by weight another layer of paint.
- a base paint without mineral particles
- hardener to provide another layer, for example in a ratio of 80 to 50 to 20 to 50% by weight another layer of paint.
- Such a coating effectively prevents penetration of viruses, bacteria etc. in the coating and effectively allows the glass surface can also be disinfected / sterilized with more aggressive media.
- the coatings according to the invention are also suitable as sun protection, in particular on laminated safety glass (VSG).
- VSG laminated safety glass
- the coatings are lightfast, Scatter the sunlight and absorb in the UV range.
- the see-through Bodies can consist of mineral glass or acrylic glass.
- the light is in the transparent body preferably on non-coated surfaces, in particular introduced at the cut edges of the vitreous.
- the see-through body can be a sheet of glass, e.g. used as a luminous display or illuminated advertising space becomes.
- a single-pane safety glass pane (18 cm x 23 cm) was first used with a conventional glass cleaner and then with an eccentric sander polished with stainless steel wool. Then the detergent-primer mixture (including GLAS-MA® special cleaner, contains ethanol 95-99% by weight, butanone 1-5% by weight) evenly applied with a spray bottle and with a soft one Excess cloth removed.
- the detergent-primer mixture including GLAS-MA® special cleaner, contains ethanol 95-99% by weight, butanone 1-5% by weight
- the pre-cut masking film was glued to the window and the cutouts removed from the disc. So then the edge became commercially available Masked tape.
- the disc was placed upright and coated using a low pressure spray gun. In order to achieve a layer thickness of approximately 25 ⁇ m, 6 layers were used applied.
- the spray was removed using a suction device aspirated about vertically standing at the end of the glass plate. After about 10 min the masking film was removed. After curing and around the edges that at the edge of the coating towards the masking film had broken the coating was coated with a dry fleece (Mercury Ultra 17, Spontex) abraded. For testing the chemical and mechanical properties subsequent tests were carried out. The coating is carried out analogously (Layer thickness approx. 40 ⁇ m).
- the coatings according to the invention can be prepared using a dichloromethane solvent (Dichloromethane 50-100% by weight, ethanol 20 to 25% by weight, butanol 0.1 to 2.5% by weight, 1-methoxy-2-propanol 0.1 to 2.5% by weight), e.g. by means of a soaked rag.
- a dichloromethane solvent Dichloromethane 50-100% by weight, ethanol 20 to 25% by weight, butanol 0.1 to 2.5% by weight, 1-methoxy-2-propanol 0.1 to 2.5% by weight
- the paint stripper i.e. especially the halogenated Solvent
- a solvent-resistant film covered to reduce evaporation and to increase the exposure time.
- a film e.g. commercially available Frapan® film be used.
- the polyacrylate binder can be used to produce a colored coating Example 1 a color paste can be mixed, which in addition to organic color pigments contains a polyester resin binder and n-butyl acetate 20-25% by weight, Xylene 10-15% by weight, ethylbenzene 1-5% by weight and 4-hydroxy-4-methyl-pentan-2-one.
- test specimens Two samples each (30 x 30 cm) were exposed over a long period in the outdoor exposure area Period exposed to the weather.
- the glasses were once at an angle of 45 ° South and north facing.
- the visual assessment of the test objects showed no changes in color and transparency.
- the liability of the paint to the underground was like before aging.
- the test specimens therefore have good weather stability on.
- a pyran S® glass pane (Schott) (6.1 cm ⁇ 9.1 cm) coated according to the invention was tested for its fire behavior in accordance with DIN 4102-13 to determine the fire resistance duration in the event of one-sided fire exposure.
- the test specimen was installed in a test furnace with the coating on the side facing away from the fire.
- Test duration (min) Observations on the glass pane 7
- the coating turns black. 30 no change 80
- the coating becomes clear 90 no change, end of flame
- the coated specimen also has a fire resistance of 90 Minutes.
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Abstract
Description
- a
- Reinigen der Glasoberfläche mit einem fettentfernenden Glasreiniger, etwa einem alkoholischen und/oder tensidischem Glasreiniger (Schritt a kann auch Bestandteil des Schrittes c sein);
- b
- Schleifen bzw. Polieren der Glasoberfläche mit einer Stahlwolle, insbesondere ohne Beeinträchtigung der Durchsicht des Glaskörpers;
- c
- Beschichtung der Glasoberfläche mit einem Primer/Reiniger (fakultativ), Abreiben, auch zum Entfernen von überschüssigem Primer/Reiniger, etwa mit einem fusselfreien Baumwolltuch, und Trocknen (zumindest einer, vorzugsweise zumindest zwei, der Schritt a, b und c werden ausgeführt);
- d
- ggf. Aufbringen einer partiellen Abdeckung (nach Trocknen), wie einer Maskierfolie, auf die Glasoberfläche;
- e
- Auftragen des mineralische Partikel enthaltenden Polyacrylat-Lackes, vorzugsweise in mehreren Schichten, etwa 4 bis 8 Schichten;
- f
- Antrocknenlassen des Polyacrylat-Lackes;
- g
- ganzes oder teilweises Abnehmen der partiellen Abdeckung (soweit Schritt d ausgeführt wurde), und
- h
- ggf. Abreiben der Beschichtung mit z.B. einem rauen Schwamm (etwa einem Scotch® Schwamm), einem Synthetikfaserflies (etwa Mercury Ultra 17 der Firma Spontex®) oder einem fusselfreien Baumwolltuch, zum Brechen der Kanten der Beschichtung des Lackes, insbesondere zur Maskierfolie hin.
| Siliziumdioxid | SiO2 | 69% - 74% |
| Natriumoxid | Na2O | 12% - 16% |
| Calciumoxid | CaO | 5% - 12% |
| Magnesiumoxid | MgO | 0% - 6% |
| Aluminiumoxid | Al2O3 | 0% - 3% |
| Eisenmonoxid | FeO | hellgrün |
| Cromtrioxid | Cr2O3 | dunkelgrün |
| Cobaltmonoxid | CoO | blau |
| Neodymtrioxid | Nd2O3 | violett |
| Feuerwiderstandsklasse | Feuerwiderstandsdauer | |
| F-Verglasung | G-Verglasung | in Minuten |
| F 30 | G 30 | ≥ 30 |
| F 60 | G 60 | ≥ 60 |
| F 90 | G 90 | ≥ 90 |
| F 120 | G 120 | ≥ 120 |
- DIN 52 347
- Verschleißprüfung (TABER-Abraser Reibradverfahren)
- DIN 53 799
- Prüfung von Platten mit dekorativer Oberfläche auf Aminoplastharzbasis (Ritzhärteprüfung)
- DIN 53778
- Beurteilung der Reinigungsfähigkeit und der Wasch- und Scheuerbeständigkeit von Anstrichen
- TABER-Test
- 350 Zyklen CS10F/500g
- Ritzhärte-Test
- 100 g (Siebdruckproben Wesel 250 g)
- Scheuerbeständigkeit
- 3500 Zyklen (belastet bis zur ersten Erkennbarkeit von Verschleißspuren)
| Prüfdauer (min) | Beobachtungen an der Glasscheibe |
| 7 | Die Beschichtung wird schwarz. |
| 30 | keine Veränderung |
| 80 | Die Beschichtung wird klar |
| 90 | keine Veränderung, Ende der Beflammung |
| Scheibe unbeschichtet | Grad | Spannung (N/mm2) | Scheibe beschichtet | Grad [°] | Spannung (N/mm2) |
| 01-P1 | 67,500 | 101 ,227 | 10-P1 | 70,000 | 115,200 |
| 01-P2 | 69,000 | 109,230 | 10-P2 | 68,500 | 106,444 |
| 01-P3 | 66,000 | 94,175 | 10-P3 | 68,000 | 103,779 |
| 02-P1 | 69,000 | 109,230 | 07-P1 | 69,500 | 112,146 |
| 02-P2 | 69,000 | 109,230 | 07-P2 | 69,000 | 109,230 |
| 02-P3 | 69,000 | 109,230 | 07-P3 | 68,000 | 103,779 |
| 03-P1 | 70,000 | 115,200 | 06-P1 | 69,500 | 112, 146 |
| 03-P2 | 68,500 | 106,444 | 06-P2 | 70,500 | 118,405 |
| 03-P3 | 67,000 | 98,780 | 06-P3 | 68,000 | 103,779 |
Claims (18)
- Verfahren zur Herstellung eines Glaskörpers mit beschichteter Oberfläche, durch gekennzeichnet, dass das Verfahren die Schritte umfasst:Reinigen und/oder Beschichten zumindest eines Teilbereichs der Glasoberfläche mit einem Primer/Reiniger,Aufbringen eines isocyanat-härtenden Polyacrylatlackes enthaltend mineralische Partikel in einer Schichtdicke von min. 10 µm auf zumindest eines Teilbereichs der Glasoberfläche undAushärten der Beschichtung.
- Verfahren gemäß Anspruch 1, durch gekennzeichnet, das das Verfahren weiterhin unabhängig voneinander einen oder mehrere der folgenden Schritte umfasst:mechanisches Entfernen von anhaftenden Restbelägen auf der Glasoberfläche,partielle Abdeckung der Glasoberfläche insbesondere mit einer Maskierfolie,Abnehmen der Maskierfolie und/oderAbreiben der partiell oder voll ausgehärteten Beschichtung zum Brechen der Spritzkanten.
- Verfahren gemäß einem der vorhergehenden Ansprüche, durch gekennzeichnet, dass der Primer umfasst bzw. besteht aus einem polaren organischen Lösungsmittel aufweisend 2 bis 12 Kohlenstoffatome, vorzugsweise 2 bis 4, und zumindest eine der folgenden Gruppen: Alkohol-, Keto-, Aldehyd-, Ester- oder Säure-Gruppe(n), vorzugsweise einen C2- bis C3- Alkohol und vorzugsweise unabhängig hiervon kleiner 5 Gew.%, vorzugsweise < 1 Gew.%, Wasser enthält.
- Verfahren gemäß einem der vorhergehenden Ansprüche, durch gekennzeichnet, dass das Entfernen von Restbelägen auf dem Glas durch Polieren mit Stahlwolle, insbesondere Edelstahlwolle erfolgt.
- Verfahren gemäß einem der vorhergehenden Ansprüche, durch gekennzeichnet, dass der Auftrag des Polyacrylatlackes enthaltend mineralische Partikel mittels Siebdruck, Aufsprühen oder Rollen erfolgt, vorzugsweise mittels Siebdruck oder Aufsprühen.
- Glaskörper mit beschichteter Oberfläche, durch gekennzeichnet, dass die Beschichtung aufweist einen isocyanat-gehärteten Polyacrylatlack enthaltend mineralische Partikel.
- Glaskörper mit beschichteter Oberfläche oder Verfahren gemäß einem der vorhergehenden Ansprüche, durch gekennzeichnet, dass die ausgehärtete Beschichtung eine Schichtdicke von 10 bis 50 µm, vorzugsweise 15 bis 30 µm, aufweist.
- Glaskörper mit beschichteter Oberfläche oder Verfahren gemäß einem der vorhergehenden Ansprüche, durch gekennzeichnet, dass die mineralischen Partikel Oxide oder Mischoxide des Aluminiums und/oder Siliziums sind, einschließlich deren Hydrate.
- Glaskörper mit beschichteter Oberfläche oder Verfahren gemäß einem der vorhergehenden Ansprüche, durch gekennzeichnet, dass die mineralischen Partikel im mittel Durchmesser von 2 bis 30 µm, vorzugsweise 5 bis 25 µm aufweisen.
- Glaskörper mit beschichteter Oberfläche oder Verfahren gemäß einem der vorhergehenden Ansprüche, durch gekennzeichnet, dass dem Polyacrylatlack Farbstoffe insbesondere Farbpigmente, für die Herstellung farbiger Beschichtungen zugesetzt sind.
- Glaskörper mit beschichteter Oberfläche oder Verfahren gemäß einem der vorhergehenden Ansprüche, durch gekennzeichnet, dass der Glaskörper Acrylglas, Brandschutzglas oder Mehrschichten/Verbundglas ist, vorzugsweise Brandschutzglas vom Typ G-Verglasung und Einscheibensicherheitsglas (ESG), und dass die Aufbringung der Beschichtung weiterhin bevorzugt auf die Glasoberfläche im eingebauten Zustand, erfolgt, insbesondere eingebaut in einen Rahmen.
- Glaskörper mit beschichteter Oberfläche oder Verfahren gemäß einem der vorhergehenden Ansprüche, durch gekennzeichnet, dass der Glaskörper Einscheibensicherheitsglas ist und das beschichtete Glas etwa die gleiche Oberflächenspannung oder maximal eine um 10 % reduzierte Oberflächenspannung gegenüber dem unbeschichteten Glas aufweist.
- Glaskörper mit beschichteter Oberfläche oder Verfahren gemäß einem der vorhergehenden Ansprüche, durch gekennzeichnet, dass der Polyacrylatlack ein 2-Komponenten-Lack herstellbar aus mindestens einem Polyacrylatbindemittel enthaltend mineralische Partikel und mindestens einem Isocyanat-Härter, aufweisend zwei oder mehr reaktive Isocyanat - Gruppen pro Molekül, ggf. geschützt, ist.
- Glaskörper mit beschichteter Oberfläche oder Verfahren gemäß einem der vorhergehenden Ansprüche, durch gekennzeichnet, dass der Lösemittelanteil in dem Polyacrylatlack vor dem Auftragen 20 bis 80 Gew.-% beträgt.
- Glaskörper mit beschichteter Oberfläche oder Verfahren gemäß einem der vorhergehenden Ansprüche, durch gekennzeichnet, dass der Lösemittelanteil Kohlenwasserstoffe und Ester bzw. Alkoxyester mit 4 bis 12, insbesondere 6 bis 10 Kohlenstoffatomen enthält.
- Glaskörper mit beschichteter Oberfläche oder Verfahren gemäß einem der vorhergehenden Ansprüche, durch gekennzeichnet, dass der Härter ein C4- bis C12- Diisocyanat und ggf. ein Silan-Derivat enthält.
- Verfahren gemäß einem der Ansprüche 1 bis 5, durch gekennzeichnet, dass das Verfahren weiterhin den Schritte des im wesentlichen rückstandsfreien Entfemens ohne Beschädigung der Glasoberfläche mit Hilfe eines Halogenkohlenwasserstoffe enthaltenden Abbeizers umfasst.
- Verwendung des Glaskörpers mit beschichteter Oberfläche gemäß einem der Ansprüche 6 bis 16 als Sonnen- oder Blickschutz, zur Sicherheitsmarkierung auf Gläsern oder als Teil eines Lichtflutersystems, insbesondere in Krankenhäusern.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10255507 | 2002-11-27 | ||
| DE2002155507 DE10255507A1 (de) | 2002-11-27 | 2002-11-27 | Beschichtete Gläser und Verfahren zu deren Herstellung |
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| Publication Number | Publication Date |
|---|---|
| EP1424314A1 true EP1424314A1 (de) | 2004-06-02 |
| EP1424314B1 EP1424314B1 (de) | 2015-01-07 |
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| EP20030027211 Expired - Lifetime EP1424314B1 (de) | 2002-11-27 | 2003-11-27 | Verwendung von Beschichtungen auf Gläsern und Verfahren zur Herstellung beschichteter Gläser |
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| Country | Link |
|---|---|
| US (3) | US20040191533A1 (de) |
| EP (1) | EP1424314B1 (de) |
| DE (1) | DE10255507A1 (de) |
| DK (1) | DK1424314T3 (de) |
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| DE10050345C1 (de) * | 2000-10-11 | 2002-05-08 | Andreas Peter Galac | Verfahren zur Herstellung von Verbundglas mit einer Mattierung |
| US6623805B2 (en) * | 2000-12-26 | 2003-09-23 | Brad Caroline | Method and materials for finished surface protection |
-
2002
- 2002-11-27 DE DE2002155507 patent/DE10255507A1/de not_active Withdrawn
-
2003
- 2003-11-27 EP EP20030027211 patent/EP1424314B1/de not_active Expired - Lifetime
- 2003-11-27 DK DK03027211T patent/DK1424314T3/en active
- 2003-11-28 US US10/724,574 patent/US20040191533A1/en not_active Abandoned
-
2008
- 2008-08-20 US US12/194,814 patent/US20080311386A1/en not_active Abandoned
-
2013
- 2013-09-25 US US14/036,996 patent/US20140020722A1/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0665252A2 (de) * | 1994-01-26 | 1995-08-02 | Kansai Paint Co., Ltd. | Wässrige Zweikomponentenbeschichtungszusammensetzung |
| US6376559B1 (en) * | 1995-04-28 | 2002-04-23 | Basf Nof Coatings Co., Ltd. | Process for preparing a dispersing component comprising an inorganic oxide sol |
| US6087444A (en) * | 1996-09-20 | 2000-07-11 | Ppg Industries Ohio, Inc. | Humidity resistant aqueous urethane resins based on hydrophobic polyhydroxy compounds and coatings |
| US5854332A (en) * | 1996-12-20 | 1998-12-29 | Ppg Industries, Inc. | Aqueous urethane/acrylic resins with branched chain extension and coating compositions made therefrom |
| WO1999022588A1 (en) * | 1997-11-03 | 1999-05-14 | Raadgevend Chemiebureau Rsb V.O.F. | Removable protective coating |
| US6020419A (en) * | 1998-03-18 | 2000-02-01 | Bayer Aktiengesellschaft | Transparent coating compositions containing nanoscale particles and having improved scratch resistance |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006093671A2 (en) | 2005-02-28 | 2006-09-08 | Ferro Corporation | Method of decorating laminated glass |
| EP1853422A4 (de) * | 2005-02-28 | 2011-08-24 | Ferro Corp | Verfahren zur dekoration von verbundglas |
| CN101481219B (zh) * | 2008-12-13 | 2011-09-07 | 张家界永兴玻璃有限公司 | 一种聚晶玻璃制作工艺 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10255507A1 (de) | 2004-06-17 |
| DK1424314T3 (en) | 2015-04-13 |
| US20140020722A1 (en) | 2014-01-23 |
| EP1424314B1 (de) | 2015-01-07 |
| US20080311386A1 (en) | 2008-12-18 |
| US20040191533A1 (en) | 2004-09-30 |
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